Engine.



P. E. CAIN. ENGINE. APPLICATION FILED JULY 5, 1912v Patented 00a. 14, 1913. :38 95 .98

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FRANK E. GAIN, OF DETROIT, MICHIGAN.

ENGINE.

Specification of Letters Patent.

Patented Oct. 14, 1913.

application filed July 5, 1912. Serial No. 707,686.

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1 that I, FRANK E. CAIN, a "rates of inerica, re the county of Nayne V in, have invented cer improvements in Entolloiving is a specifiare being had therein to the nying; (in; ings. i invention relates to improvements in internal roinhustion engines and more partirularly to a construction and arrangement of a lindrical valve for multiple cylinder -z ng'ines of the vertical type.

The ohjeet of the invention is to so con- :atrurrt and arrange the valve that one inlet and one exhaust port will serve two adjarent cylinders and leakage past the valve and the ports Wili prevented thus obviating the of cornpr" ion.

A further object of i. e invention is to so eonatrnct the valve that it may he efliciently 'r" by a. oiroul tion of Water there- "1 and provide certain other new i the construction and all as hereinafter invention consists in the in the claims reference i 0 tompun in diaum in igitudinal vertieal section end oi the cylinders of g; the invention; Fig. 2

ral section of the same i l Fig. 3 a side the .ve dv-t'aohed; Fig. 4 is a iion oil the same on the .line

50 Z; and 3 are views of a packing :lviarlwd'.

in the drawing the several cylinders l are nh h'fi as vast an 5506 but it will be under that they any he Well cast in pairs,

1 I 1 or end or head portion 2 of the ti" nuversely of the oyliir ally of the head arross form a cylinrlriral seat.

aped valve member 1o cylinders or head h Wfllt-J may he circuand the valve member arout ts length set forth and more par-' and provided with tuhuiar extensions (E and 7 at its ends into which water passages S and 9 formed in caps 10 and 11 respeotively, open at one end, the opposite ends of said passages being connected with the water space to permit, the Water to circulate freely through the valve member. The tubular extensions 6 and 7 engage removal l bearings 12 and 13 respectively, and to make a Water tight jointwithin the extensiontubular bosses 14: are formed on the caps; and 11 to project into the tubular extensions. and a packing gland 15 provided in each extension to engage the inner end of the tubular bosses, said gland being held in place by a suitable tie bolt 16 extending out.- Ward through an opening in the cap.

Each cylinder is formed with a port 17 in its upper end opening through the lower side of, thovalve seat 3 and the head is formed with an inlet port 18 and an exhaust port It) opening through one aide of the valve seat at a point midway between two adjarvui' vl-- inders so that each inlet and exhaust portmay serve to admit rhargrvs to two cylinders and allow the escape f the prodlu'ls of roan hustion from av pair of cylinders. The valumemher 4 is formed with an annular port channel 20 opposite ear-h of the ports '1? leading into the cylinders and these port channels are formed with lateral vxlensiom 21 reaching longitudinally of the valve to a point beyond the adjacent inlet and exhaust ports which are located at onev side of the rylinder while the port 17 and its corrw sponclixu; port channel 20 i.-; loratvd in the (ventral rertiral plane of the cylinder. Dar-- ing the rotation of the valve. the lateral or tension of each port channel is ln'ought al ternately oppoaite the inlet and exhaust ports than uncovering said ports and pie! mitting combustible charges to enter the vl inder through the lateral extension and annular port channel and permitting the oxhaust f om the cylinder to escape therefrom in timed relation to the movement of the pisions 92 through the annular channel and its lateral extension to the exhauat port. The port rhannel which rontrols the inlet and exhaled from one rylinder of each pair has its lateral extension at one side of the valve metrically opposite side of the valve, said extensions extending laterally from their channels in opposite diri tions and overlapping each other at their adjacent ends in their path of travel substantially the Width of the ports.

The cylindrical portions 23 at the ends of the valve fit loosely within the valve seat to turn freely therein and ans provided with annular packing rings 24' fitting Within grooves in said. portions to make a tight joint and prevent leakagelongitudinally of the valve in one'di'rection from the adjacent annular port channel. The cylindrical portion 25 of the valve which lies between the pairs of cylinders, is also provided with annular packi m rings 24 to'make a tight joint at one side of the adjacent annular port channels; To prevent leakage from the port channels and their lateral extensions longitudinally of the valve, said valve is formed with a groove 26 in its face extending along adjacent to one side of which channcl and adjacent to the edge of the lateral extension thereof and within each of these channels is. a split packing ring 27, shown in Figs. 5 and 6, having a straight portion to fit within the-annular portion of the groove and a laterally curved andextended portion to fit within that portion of the groove which lies adjacent to the edge of the channel extension. When the valve is turned with one of the extensions of the port channel opposite one of the ports, the ring 27 lies against the wall of the valve seat around the port, and thus prevents any leakage set the valve from one port to the other or a ong the valve seat into the adjacent port channel.

Openings are provided in the head portion 2 to receive suitable spark plugs 28, said openings being located directly 0 posite the,

port channels in the valve whic together with their lateral extensions form a part of the compression and firing chamber of the cylinder and as these channels as well as the upper end of the cylinder contain the explosive charges at the time of firing,

the force of the explosion is substantially equal in all directions upon the valve.

In this construction the valve may be quickly and easily removed'for the replace ment or repair of its packing rings by removing one of the caps 11 or 12 which close the ends of the cylindrical seat or bore 3 for the valve and as the valve is formed hollow throughout its length and connected with the water space surrounding the cylinders and head, the valve is efliciently cooled and all liability of its becoming expanded within its port to such an extent as to prevent its turning freely therein is obviatcd.

Obviously, changes may be made in the form and construction of the valve and in its arrangement and position in relation to the cylinders without departing from the spirit of my invention and I do not care to limit myself to the particular form and construction shown.

Having thus fully described my invention what I claim is I 1. in an internal combustion engine, the combination of a cylinder having a portion provided with a bore forming a, seat for a valveand formed with an inlet and an ex haust passage opening into said borefand a valve member in said bore provided with an annular port-channel in constant communication with the cylinder and having a lateral extension adapted to register with said inlet and exhaust passages.

52. In an internal combustion engine, the combination of a pair of cylinders having a portion provided with a valve seat and an inlet and an exhaust passage for the two cylinders opening through said seat, a valvemember engaging said seat andformed with an annular channel for each cylinder in constant communication therewith, each channel being formed with a lateral extension to register with said passages.

3. In an internal combustion engine, the

combination of a cylinder having a portion provided with a bore forming a. seat for a valve and formed with an inlet and an exhaust passage opening lnto said bore, and a valve member in said bore provided with an annular port-channel in constant communication with the cylinder and havinga lateral extension adapted to register with said inlet :and exhaust passages, said member being alsoformed with grooves ad acent to thei edges of said channel and lateral extension thereof, and packing rings in said grooves one of which is formed with an off-set 'por tion to fit within the groove adjacent to the sedge of the lateral extension of the channel. channels 4. In an internal combustion engine, the combination of a pair of cylinders having a portion provided with a valve seat; and an.

exhaust passage for the two cylinders opening through said seat, a valve member engaging said seat and formed with an annular channel for each cylinder in constant communication therewith, each channel being formed with a lateral extension to register with said passages, said extensions being positioned at diametrically opposite sides of the valve and overlapping each.

other in their path of travel, and said valve being provided with grooves adjacent to the edges of said channels and the extensions thereof, and packing rings having off-set portions to engage said grooves.

5. In an internal combustion engine, the combination of a cylinder having a water jacket and a head provided with a bore forming a seat for a valve and also formed with inlet and exhaust passages openinginto the bore, a hollow cylindrical valve Within the bore having an annular port-channel in communication with the upper end of the cylinder said channel being formed with a lateral extension adapted to register with the inlet and exhaust passages when the valve is turned, and members at the ends of the valve provided with passages connecting the interior of'the valve at its ends with the water jacket.

6. In an internal combustion engine, the combination of a plurality of cylinders, a head portion for said cylinders formed with a bore extending transversely of the cylinders across their upper ends and communicating therewith, said head being also formed-with an inlet and an exhaust passage for each pair of cylinders, a valve member in said bore formed hollow throughout its length and having annular port-channels in constant communication with the cylinders, each channel being formed with a hollo-w extension to register with the inlet and exhaust passages, removable bearings for the ends of the valve member, and caps closing the ends of the valve member and formed with passages for conducting water thereto to circulate therethrough.

7. In an internal combustion engine, the combination of a plurality of vertical cylinders provided with water jackets, a head on the cylinders formed with a bore forming a valve seat extending horizontally across the upper ends of all of the cylinders with a passage opening into the T ipper end of each cylinder and into the bore and with an inlet and exhaust passage located midway between the cylinders of each pair of cylinders and opening into the bore, a

hollow cylindrical valve member in said bore formed with annular port=channels opposite the passages opening into the upper ends of the cylinders, said channels being formed with lateral extensions to register with the inlet and exhaust passages when the valve is turned and the valve being provided with rooves along the edges of each port-channe? and its lateral extension, the lateral extensions of the port-channels for adjacent cylinders being extended laterally from the channels in opposite directions and at opposite sides of the valve, packing rings in said grooves, certain of said rings being formed with off-set portions to engage the groove extending around the lateral extensions of the port-channels, and caps covering the ends of the valve member and provided with passages opening into the open end of the valve member at one end and communicating at their opposite ends with the water jacket.

In testimony whereof I afiix my signature in presence of two witnesses.

FRAN E. CAIN. 

